This report is the final deliverable of the "Future of E-Bikes in Public Lands" research project. The research was funded through the Federal Highway Administration (FHWA) Federal Lands Highway Innovation Research Council. This report represents the first national-scale effort to develop a comprehensive framework to study the opportunities and chal
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Open-graded friction courses (OGFC) can offer many benefits, such as reducing hydroplaning, surface reflectivity, and splash and spray, and improving wet pavement friction. These benefits can improve safety during wet-weather road conditions. This document describes practices used by Florida, South Carolina, and Georgia DOTs to improve OGFC durabil
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Electric-assist bicycles (e-bikes) are growing in popularity, and their use has increased on public lands managed by federal, state, and local agencies. Evaluation of e-bike use on public lands is hindered by a dearth of scientific research. This paper presents the results of a human factors field study that evaluated participant speed and behavior
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This document presents the concept of operations for roadway automated driving systems (ADS) integration targeted at transportation agencies in the United States. Developed by the Federal Highway Administration, the purpose of this document is to define likely ADS uses and how they can safely, equitably, and efficiently be integrated with the overa
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This document presents a summary of a lifecycle cost analysis (LCCA) study that was performed by a signature bridge owner evaluating different overlay options for one of their bridges. The analysis compared ultra-high performance concrete (UHPC) overlays with several thicknesses with conventional concrete overlay solutions and complete deck replace
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The Federal Highway Administration initiated the Cooperative Driving Automation (CDA) Program, formerly known as the CARMA Program, to advance the research and development of CDA to accelerate market readiness and deployment. CDA aims to improve the safety, traffic throughput, and energy efficiency of the transportation network by allowing road use
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This document is a technical summary of the Federal Highway Administration report Driver Yielding with LED-Embedded Pedestrian- and School-Crossing Signs.
This report documents the Comprehensive Deployment Plan of the Truck Platooning Early Deployment Assessment Phase 2 project. It includes important aspects of the Field Operational Test (FOT): (a) technical approach for Cooperative Adaptive Cruise Control (CACC) including system functionality and some initial relevant functional safety consideration
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This technical report accompanies the Freight Analysis Framework Forecasts Version 5 (FAF5.2). The technical report outlines the data and methodology used to develop freight forecasts using the 2017 base-year FAF data for 2020, 2022, 2023, 2025, and long-term forecasts in 5-year increments from 2030 to 2050. FAF5 estimates are updated periodically
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United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development
2022-11-01
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Modern Nondestructive Evaluation (NDE) technologies offer an expanding suite of geophysical techniques to detect and locate buried utilities. This project focused on identifying promising technologies that merit expanded application and mainstream deployment by State departments of transportation (DOTs). Since the Second Strategic Highway Research
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This document is intended to act as a nonbinding “road map” of service life design concepts and methods for bridge owners and designers. The focus of the document is on North American design practice and references for application of service life design principles are provided for highway bridges composed of both concrete and steel. The document ma
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-11-01
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Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste
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United States. Department of Transportation. Federal Highway Administration
2022-11-01
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The In-Situ Scour Testing Device (ISTD) is an advanced system designed by the hydraulics research team at the Turner-Fairbank Highway Research Center (TFHRC) to measure the erosion resistance of fine-grained, cohesive soils directly in the field. It features an innovative erosion head that, when inserted into a standard drill casing, can direct a h
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United States. Department of Transportation. Federal Highway Administration
2022-11-01
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The In-Situ Scour Testing Device (ISTD) is an advanced system designed by the hydraulics research team at the Turner-Fairbank Highway Research Center to measure the erosion resistance of fine-grained, cohesive soils directly in the field. It features an innovative erosion head that, when inserted into a standard drill casing, can direct a horizonta
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United States. Department of Transportation. Federal Highway Administration
2022-11-01
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The Federal Highway Administration (FHWA) is collaborating with State, local and industry partners, and the public to build for the future by identifying proven, market-ready but underutilized processes or technologies in round seven of Every Day Counts (EDC) program (2023-2024). In March 2022 FHWA posted a Call for Ideas of innovations and process
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The Federal Highway Administration (FHWA) originally published the Model Inventory of Roadway Elements – MIRE 1.0 guidance on a set of recommended safety data elements for State departments of transportation (DOTs) in 2010. These elements could support a variety of network and site-specific safety analyses, as well as support the methods introduced
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The Federal Highway Administration (FHWA) originally published the Model Inventory of Roadway Elements – MIRE 1.0 guidance on a set of recommended safety data elements for State departments of transportation (DOTs) in 2010. These elements could support a variety of network and site-specific safety analyses, as well as support the methods introduced
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-10-30
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The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-10-28
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The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis
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United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office
2022-10-28
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This document provides examples of ITS technologies deployed to improve highway safety. The featured benefits are based on past evaluations of ITS projects contained in the ITS Databases at: www.itsknowledgeresources.its.dot.gov.
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